Marble is a type of metamorphic stone formed from limestone slabs regardless. Its main component is calcite (crystalline form of calcium carbonate, CaCO3).
Granite is composed of a volcano lava in the molten state is under considerable pressure to the surface crust uplift, magma tectonic rock burst to the surface, and slowly cooling solidification in the ground form, is a kind of deep into acidic igneous rocks, which belongs to the magmatite (Huo Chengyan). Granite, quartz, feldspar and mica as the main component.
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